1223504004 has 48 divisors (see below), whose sum is σ = 2936001600. Its totient is φ = 396397056.

The previous prime is 1223503979. The next prime is 1223504011. The reversal of 1223504004 is 4004053221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53304 + ... + 72720.

It is an arithmetic number, because the mean of its divisors is an integer number (61166700).

Almost surely, 2^1223504004 is an apocalyptic number.

It is an amenable number.

1223504004 is an abundant number, since it is smaller than the sum of its proper divisors (1712497596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223504004 is a wasteful number, since it uses less digits than its factorization.

1223504004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19572 (or 19570 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1223504004 is about 34978.6220997912. The cubic root of 1223504004 is about 1069.5517393310.

Adding to 1223504004 its reverse (4004053221), we get a palindrome (5227557225).

The spelling of 1223504004 in words is "one billion, two hundred twenty-three million, five hundred four thousand, four".